Developer Tools
Convert, edit, optimize, inspect, and protect files with fast browser-based tools.
39 Tools
JSON FormatterFormat and indent JSON for easier reading.JSON ValidatorValidate JSON and locate syntax errors.XML FormatterFormat XML with readable indentation.YAML to JSONConvert YAML data into formatted JSON.Base64 EncoderEncode UTF-8 text as Base64.Base64 DecoderDecode Base64 into readable UTF-8 text.URL EncoderEncode text for use in a URL.URL DecoderDecode percent-encoded URL text.HTML EscapeEscape reserved HTML characters.HTML UnescapeConvert HTML entities back to text.UUID GeneratorGenerate secure random UUID v4 values.JWT DecoderInspect a JWT header and payload locally.Regex TesterTest regular expressions and view matches.Timestamp ConverterConvert Unix timestamps and ISO dates.Hash GeneratorGenerate SHA-256 or SHA-1 checksums from text.Javascript MinifierJavascript Minifier runs entirely in your browser. Files are never uploaded to our server.Javascript BeautifierJavascript Beautifier runs entirely in your browser. Files are never uploaded to our server.Css MinifierCss Minifier runs entirely in your browser. Files are never uploaded to our server.Css BeautifierCss Beautifier runs entirely in your browser. Files are never uploaded to our server.Html MinifierHtml Minifier runs entirely in your browser. Files are never uploaded to our server.Html BeautifierHtml Beautifier runs entirely in your browser. Files are never uploaded to our server.Sql FormatterSql Formatter runs entirely in your browser. Files are never uploaded to our server.Graphql FormatterGraphql Formatter runs entirely in your browser. Files are never uploaded to our server.Json To YamlJson To Yaml runs entirely in your browser. Files are never uploaded to our server.Json To XmlJson To Xml runs entirely in your browser. Files are never uploaded to our server.Xml To JsonXml To Json runs entirely in your browser. Files are never uploaded to our server.Csv To JsonCsv To Json runs entirely in your browser. Files are never uploaded to our server.Json To CsvJson To Csv runs entirely in your browser. Files are never uploaded to our server.Query String ParserQuery String Parser runs entirely in your browser. Files are never uploaded to our server.Url ParserUrl Parser runs entirely in your browser. Files are never uploaded to our server.Number Base ConverterNumber Base Converter runs entirely in your browser. Files are never uploaded to our server.Binary To TextBinary To Text runs entirely in your browser. Files are never uploaded to our server.Text To BinaryText To Binary runs entirely in your browser. Files are never uploaded to our server.Hex To TextHex To Text runs entirely in your browser. Files are never uploaded to our server.Text To HexText To Hex runs entirely in your browser. Files are never uploaded to our server.Ulid GeneratorUlid Generator runs entirely in your browser. Files are never uploaded to our server.Nanoid GeneratorNanoid Generator runs entirely in your browser. Files are never uploaded to our server.Semver CompareSemver Compare runs entirely in your browser. Files are never uploaded to our server.Semver IncrementSemver Increment runs entirely in your browser. Files are never uploaded to our server.
How it works
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Frequently asked questions
Are developer tools free?
The currently published tools are free to use in the browser.
Are files uploaded to a conversion server?
Supported processing runs locally on your device. Each tool page explains its workflow before you start.
Do I need to install software?
No. Use a current browser and keep the original file until you verify the result.